Driving trolley for electric hoist

Abstract

The utility model discloses a driving trolley for an electric hoist, which comprises a main support frame provided with a motor. The auxiliary supporting frame corresponds to the main supporting frame, and the two sides of the bottom of the auxiliary supporting frame are connected with the main supporting frame through bearing shaft assemblies; the two main driving wheels are installed on the two sides of the upper end of the main supporting frame correspondingly, and the main driving wheels are synchronously connected to the motor through a gear reducer; the two auxiliary driving wheels are installed on the two sides of the upper end of the auxiliary supporting frame correspondingly, and gaps are formed between the auxiliary driving wheels and the main driving wheels and used for running to the track support; the main driving wheel and the auxiliary driving wheel are stepped wheels and are provided with inner wheel parts and outer wheel parts, the diameter of the outer wheel parts is larger than that of the inner wheel parts, and wheel teeth are arranged on the end faces of the outer wheel parts. The two sets of main driving wheels and the two sets of auxiliary driving wheels are arranged on the track support in a matched and sliding mode, positioning and motor driving are achieved through the step hub, guiding operation of the inner wheel part and the outer wheel part is completed, the electric hoist is convenient to drive, operation is stable, operation is easy, and fast and convenient carrying is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric hoists, and in particular relates to a driving trolley for an electric hoist. Background Art

[0002] The wire rope electric hoist is a type of lifting equipment with a compact structure, light weight, high efficiency, and easy operation. When equipped with a running trolley, it can be used as an overhead monorail crane. Tracks are generally made of I-beams and can be divided into two types: straight and curved tracks. However, the electric hoists we commonly use, especially in situations where the lifting height is high, are equipped with a single-wheel running trolley, which is only suitable for straight tracks or situations with a large turning radius. Even if they can travel on a large curvature radius, they often experience varying degrees of track jamming and gnawing due to excessive resistance, improper use, and other reasons. In addition, the wheel hub of the running trolley is usually cylindrical, and the clearance between it and the track is unstable, which can easily cause the running trolley to yaw when running on the track. In addition, if the clearance is too large, there is also the risk of the wheel coming off the track.

[0003] Therefore, there is an urgent need for a driving trolley for an electric hoist which has a simple structure, is easy to drive and runs smoothly. Utility Model Content

[0004] In view of this, the technical problem to be solved by the present invention is to provide a driving trolley for an electric hoist, which is used to avoid the troubles of unstable wheel hub matching and single overall structure of the previous electric hoist running trolley.

[0005] In order to solve the above technical problems, the utility model discloses a driving trolley for an electric hoist, which includes a main support frame, and a motor is installed on the main support frame;

[0006] Auxiliary support frame, the auxiliary support frame corresponds to the main support frame, and the two sides of the bottom are connected to the main support frame through the load-bearing shaft assembly;

[0007] There are two main drive wheels, which are installed on both sides of the upper end of the main support frame. The main drive wheels are synchronously connected to the motor through a gear reducer;

[0008] There are two slave drive wheels, which are respectively installed on both sides of the upper end of the auxiliary support frame, and there is a gap between them and the main drive wheel, and the gap is used to run to the track support;

[0009] Among them, the main driving wheel and the slave driving wheel are both configured as stepped wheels, having an inner wheel portion and an outer wheel portion, the diameter of the outer wheel portion is larger than the diameter of the inner wheel portion, and the end face of the outer wheel portion has gear teeth.

[0010] According to one embodiment of the present invention, the above-mentioned load-bearing shaft assembly includes a load-bearing stud, both ends of which are provided with threads and locked by nuts, and a safety pin is passed through the end of the load-bearing stud.

[0011] According to one embodiment of the present invention, the load-bearing studs are further sleeved with a plurality of adjustment washers.

[0012] According to an embodiment of the present invention, the width of the gear teeth gradually decreases from the inside to the outside, and the ends of the gear teeth have an arc.

[0013] Compared with the prior art, the present invention can achieve the following technical effects:

[0014] The two sets of main drive wheels and the slave drive wheels are slid onto the track bracket, and the stepped wheel hub is used for positioning. The electric motor drives the inner and outer wheels to guide the operation. The electric hoist is easy to drive, runs smoothly, and is simple to operate, achieving fast and convenient transportation.

[0015] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of a driving trolley for an electric hoist according to an embodiment of the present utility model;

[0018] Figure 2 It is a side view of a driving trolley for an electric hoist according to an embodiment of the present utility model.

[0019] Figure ID

[0020] Main support frame 10, motor 20, auxiliary support frame 30, load-bearing shaft assembly 40, load-bearing stud 41, nut 42, safety pin 43, adjustment gasket 44, main drive wheel 50, slave drive wheel 60, inner wheel part 71, outer wheel part 72, gear teeth 73, track bracket 80. DETAILED DESCRIPTION

[0021] The following will describe the implementation of the present invention in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a driving trolley for an electric hoist according to an embodiment of the present utility model; Figure 2 It is a side view of a driving trolley for an electric hoist according to an embodiment of the present utility model.

[0023] As shown in the figure, a driving trolley for an electric hoist includes a main support frame 10, which is equipped with an electric motor 20; an auxiliary support frame 30, which corresponds to the main support frame 10, and the two sides of the bottom are connected to the main support frame 10 through a load-bearing shaft assembly 40; a main driving wheel 50, which is provided with two main driving wheels 50 and is respectively installed on both sides of the upper end of the main support frame 10, and the main driving wheels 50 are synchronously connected to the motor 20 through a gear reducer; a slave driving wheel 60, which is provided with two slave driving wheels 60 and is respectively installed on both sides of the upper end of the auxiliary support frame 30, and there is a gap between the slave driving wheel 50, and the gap is used to run to the track bracket 80.

[0024] In one embodiment of the present invention, the main support frame 10 and the auxiliary support frame 30 correspond to each other and are connected by a load-bearing shaft assembly 40. At the same time, the two are respectively equipped with two sets of front and rear main drive wheels 50 and slave drive wheels 60. The main drive wheels 50 and slave drive wheels 60 are limitedly slid on the track bracket 80. The track bracket 80 is generally set to an I-beam shape to facilitate the operation of the drive wheels thereon.

[0025] The motor 20 is installed on the main support frame 10, and the main driving wheel 50 is meshed and synchronized by installing gears, and then the gear reducer is connected to the drive shaft of the motor 20 to complete the transmission, thereby realizing the operation of the entire driving trolley on the track bracket 80, and finally driving the electric hoist to lift heavy objects back and forth in the workshop. The operation is simple and can achieve fast transportation.

[0026] The main drive wheel 50 and the secondary drive wheel 60 are both stepped wheels, comprising an inner wheel portion 71 and an outer wheel portion 72. The outer wheel portion 72 has a larger diameter than the inner wheel portion 71. The inner wheel portion 71 and the outer wheel portion 72 cooperate to resist a track bracket 80, which can be configured as an I-beam, positioning the upper and lower ends of the drive wheels to achieve smooth operation. For ease of illustration, the accompanying drawings only show the lower end. The inner wheel portion 71 and the outer wheel portion 72 work together to further enhance stability compared to a single-wheel structure. Furthermore, the outer wheel portion 72 has gear teeth 73 on its end, resembling the end face of a gear, extending from the outer wheel portion 72 to reduce friction and ensure smoother and more flexible operation.

[0027] The load-bearing shaft assembly 40 of the present invention includes a load-bearing stud 41 , both ends of which are provided with threads and are locked by nuts 42 , and a safety pin 43 is passed through the end of the load-bearing stud 41 to improve safety and prevent loosening.

[0028] Furthermore, the load-bearing stud 41 is also provided with a plurality of adjustment washers 44 for adjusting the gap and installing the electric hoist.

[0029] In addition, the width of the gear teeth 73 gradually decreases from the inside to the outside, and the ends of the gear teeth 73 have a curvature to reduce wear.

[0030] In summary, the utility model slides onto the track bracket 80 through two sets of main drive wheels 50 and slave drive wheels 60, uses a stepped wheel hub to achieve positioning, and is driven by the motor 20 to complete the guided operation of the inner wheel portion 71 and the outer wheel portion 72. The electric hoist is easy to drive, runs smoothly, and is simple to operate, achieving fast and convenient transportation.

[0031] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A driving trolley for an electric hoist, characterized in that: include: A main support frame, wherein the main support frame is equipped with an electric motor; A secondary support frame, the secondary support frame corresponds to the main support frame, and the two sides of the bottom are connected to the main support frame through a load-bearing shaft assembly; Main drive wheels, two of which are provided and mounted on both sides of the upper end of the main support frame, and the main drive wheels are synchronously connected to the motor through a gear reducer; Two slave drive wheels are provided and are respectively installed on both sides of the upper end of the auxiliary support frame, and there is a gap between them and the main drive wheel, and the gap is used to run to the track support; Wherein, the main driving wheel and the slave driving wheel are both configured as stepped wheels, having an inner wheel portion and an outer wheel portion, the outer wheel portion has a diameter larger than the inner wheel portion, and the outer wheel portion has gear teeth on its end face.

2. The driving trolley for electric hoist according to claim 1, characterized in that: The load-bearing shaft assembly includes a load-bearing stud, both ends of which are provided with threads and are locked by nuts, and the ends of the load-bearing stud are penetrated by a safety pin.

3. The driving trolley for electric hoist according to claim 2, characterized in that: The load-bearing stud is also sleeved with a plurality of adjustment washers.

4. The driving trolley for electric hoist according to claim 1, characterized in that: The width of the gear teeth gradually decreases from the inside to the outside, and the ends of the gear teeth have an arc.

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